Add text validation and choice consistency checks

[rsh52]

Summary

This update expands build_quality_report() with metadata-driven validation findings, corrects several false-positive scenarios, and improves report execution performance.

Changes

• Added invalid_choice_value findings for radio, dropdown, Yes/No, and True/False fields using raw REDCap values and metadata-defined choice codes.
• Added invalid_validation_format findings for supported text validation types configured through text_validation_type_or_show_slider_number.
• Enforced user-configured text_validation_min and text_validation_max bounds through outside_validation_range.
• Added strict validation for numeric, date, datetime, time, email, and phone formats.
• Accepted numeric decimals without a leading zero, such as .850 and -.850.
• Updated date and datetime validation to reflect REDCap API behavior:
  • Dates use canonical YYYY-MM-DD.
  • Datetimes use canonical YYYY-MM-DD HH:MM or YYYY-MM-DD HH:MM:SS.
  • DMY, MDY, and YMD metadata suffixes are treated as data-entry display settings.
• Prevented malformed temporal values from also producing range or future-date findings.
• Removed orphaned_branching_reference because valid cross-form, event-qualified, and smart-variable references could not be reliably distinguished from missing references.
• Excluded checkbox fields from invalid_choice_value:
  • Checkbox metadata codes continue to identify exported option columns.
  • Checkbox cells remain separate 0/1 values.
  • Existing checkbox_no_values_selected and checkbox_none_with_other findings remain.
• Ensured REDCap record imports explicitly request raw field headers, raw choice values, and raw checkbox values.

Performance

• Vectorized text-validation parsing instead of parsing each cell independently.
• Reused parsed validation values across format, range, IQR, and future-date checks.
• Cached form applicability and represented-field calculations within each report.
• Parsed choice metadata once per report.
• Vectorized and cached derived checkbox parent values used by field and record summaries.
• Reduced a local validation-heavy benchmark from approximately 8.4 seconds to 0.8–1.1 seconds.
• Reduced a checkbox-heavy benchmark from approximately 5.7 seconds to 2.1 seconds.

Documentation

• Updated build_quality_report() documentation with supported validation behavior.
• Expanded the quality-report article to explain:
  • Metadata-driven validation rules and bounds.
  • Canonical REDCap API date and datetime formats.
  • Leading-decimal numeric values.
  • Checkbox choice handling.
  • Removal of branching-reference findings.
• Regenerated roxygen documentation, pkgdown output, and mock report fixtures.

Testing

• Added regression coverage for:
  • Supported choice types and invalid codes.
  • Leading-decimal numeric values.
  • Numeric precision and comma-decimal formats.
  • Canonical date and datetime exports across metadata display orders.
  • Temporal bounds and future-date findings.
  • Unsupported or unconfigured text validations.
  • Checkbox exclusion from invalid-choice findings.
  • Cross-form, event-qualified, smart-variable, and missing branching references.
  • Repeating-event and repeating-instrument finding context.
• Completed full test suite, Air, styler, lintr, pkgdown build, and package check.
• R CMD check: 0 errors, 0 warnings, 0 notes.